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Bisphenol A-type cyanate ester resin prepolymer and preparation method thereof

A type of cyanate ester and prepolymer technology, applied in the field of bisphenol A type cyanate ester resin prepolymer and its preparation, can solve problems such as non-toxicity, environmental hazard and/or toxicity, and achieve simple operation process, Effects of short prepolymerization time, low dielectric constant and dielectric loss

Active Publication Date: 2013-03-27
SHENGYI TECH SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention patent applications CN102399366A and CN102199289A employ polymerization accelerators such as organic transition metal salts and nonylphenols to shorten the reaction time, but the above compounds are environmentally hazardous and / or toxic (especially when cleaning materials made with them), so Not an ideal ingredient either

Method used

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  • Bisphenol A-type cyanate ester resin prepolymer and preparation method thereof
  • Bisphenol A-type cyanate ester resin prepolymer and preparation method thereof
  • Bisphenol A-type cyanate ester resin prepolymer and preparation method thereof

Examples

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Embodiment 1

[0026] A kind of preparation method of bisphenol A type cyanate resin prepolymer, take bisphenol A type cyanate ester monomer as main material, polyphenylene ether is auxiliary material, preparation process is as follows:

[0027] Take 100g of bisphenol A type cyanate monomer and heat and melt at 140°C; then add 5g of polyphenylene ether with a number-average molecular weight of 1500g / mol, and continue the heat preservation reaction for 10 hours while keeping stirring. When the system's refractive index reaches 1.584 , Cool down to end the reaction; when the cooling temperature reaches about 75°C, add 45g butanone to the polymer, stir evenly and cool to room temperature to obtain a bisphenol A cyanate resin prepolymer with a solid content of 70%.

Embodiment 2

[0029] A kind of preparation method of bisphenol A type cyanate resin prepolymer, take bisphenol A type cyanate ester monomer as main material, polyphenylene ether is auxiliary material, preparation process is as follows:

[0030] Take 100g of bisphenol A type cyanate ester monomer and heat and melt at 150°C; add 1g of polyphenylene ether with a number average molecular weight of 1500g / mol, and continue to keep warm for 8 hours while keeping stirring. When the system's refractive index reaches 1.585, Cool down to end the reaction; when the cooling temperature reaches about 75°C, add 43.3g butanone to the polymer, stir evenly and cool to room temperature to obtain a bisphenol A cyanate resin prepolymer with a solid content of 70%.

Embodiment 3

[0032] A kind of preparation method of bisphenol A type cyanate resin prepolymer, take bisphenol A type cyanate ester monomer as main material, polyphenylene ether is auxiliary material, preparation process is as follows:

[0033] Take 100g of bisphenol A type cyanate monomer and heat and melt at 160°C; add 0.5g of polyphenylene ether with a number average molecular weight of 1000g / mol, and continue to keep warm for 6 hours while keeping stirring. When the system's refractive index reaches 1.587 , the temperature was lowered to end the reaction; when the cooling temperature reached about 75°C, 43.1 g of butanone was added to the polymer, stirred evenly and then cooled to room temperature to obtain a bisphenol A cyanate resin prepolymer with a solid content of 70%.

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Abstract

The invention discloses a preparation method of bisphenol A-type cyanate ester resin prepolymer. A bisphenol A-type cyanate ester monomer is taken as a main material and polyphenyl ether is taken as an auxiliary material. The preparation method comprises the following processes of: heating and fusing 100 parts by weight of bisphenol A-type cyanate ester monomer at 110-170 DEG C, adding 0.05-5 parts by weight of polyphenyl ether, continuing to carry out thermal reaction for 1-10 hours under the condition of keeping agitation, and cooling and finishing the reaction when a refraction coefficient of a system achieves 1.583-1.589; and adding 30-50 parts by weight of butanone into the polymer when the temperature is reduced to 70-80 DEG C, evenly agitating and then cooling to room temperature so as to obtain the bisphenol A-type cyanate ester resin prepolymer. A new preparation method of the bisphenol A-type cyanate ester resin prepolymer is developed by the invention, the prepared prepolymer product is good in solubility and long in storage period, and excellent performance of solid cyanate ester is kept.

Description

technical field [0001] The invention relates to a bisphenol A type cyanate resin prepolymer and a preparation method thereof. Background technique [0002] Cyanate resin is a new type of high-performance thermosetting resin. Its monomer contains two or more cyanate functional groups (-OCN). After curing, it forms a highly cross-linked triazine cyclized polymer. Its outstanding performance features are excellent dielectric properties, with very low dielectric constant (ε=2.64-3.11) and dielectric loss value (tgδ=0.001-0.008) in the wide frequency range from X-band to W-band. In addition, it also has outstanding heat resistance, excellent mechanical properties, and low moisture absorption, so in cutting-edge fields including microelectronics, aviation, aerospace and other industries, especially in dielectric properties, hygrothermal properties and Cyanate ester resin is one of the most competitive resin varieties when the mechanical properties are required to be very high. T...

Claims

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Application Information

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IPC IPC(8): C08G73/06C08L79/04C08L71/12
Inventor 季立富戴善凯肖升高谌香秀黄荣辉马建梁国正顾嫒娟
Owner SHENGYI TECH SUZHOU
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